6 Answers

Powdered superfine sugar or powdered milk. Not too much! The actor should exhale through the rolled-up bill or whatever, and not inhale. Do it quickly enough and the audience can’t tell the difference.

I’m pretty sure that most movies showing the use of cocaine actually involve the use of cocaine. Someone (or a lot of people) on the set has some anyway, and nobody’s ever going to arrest an actor and production crew for that. Same with weed: when you see someone smoking pot in a movie, I’ve always believed they’re really smoking.

Now, I feel like it’s different with other drugs. Heroin in particular is probably faked. But coke and weed are probably the real things.